Finding a string between 2 other strings that has a minimum length of 5 a maximum of 7 and contains 2 dots
Ok, this might sound a bit complicated, but trust me it shouldn't be.
What I need to do is find a string that can be any value, and is placed between ">"
and "</"
with a minimun length of 5 and a maximum length of 7 and contains exactly 2 dots.
S开发者_如何学Pythono if I have a text file like this:
<a href="www.site.com">a site</a>
text<br />
More test<br />
<img src="maybe an images">
<h2>5.0.77</h2></br>
More text<br />
I want it to find only the 5.0.77. And no, the number isn't always between h2
tags, and the number isn't even always the same. The only thing that is static about it is that is is between ">"
and "</"
and that it is between 5 and 7 characters and contains 2 dots.
So if anyone could help, I'd be very grateful.
Something like this.
Imports System.Text.RegularExpressions
Module Module1
Sub Main()
Console.WriteLine(FindString("<h2>5.0.77</h2>"))
Console.WriteLine(FindString("<h2>5.77</h2>"))
Console.WriteLine(FindString("<h1>title</h1>"))
Console.WriteLine(FindString("<h2>1575.0.77</h2>"))
Console.WriteLine(FindString("<h2>2.0.77</h2>"))
Console.WriteLine(FindString("5.0.77</h2>"))
Console.ReadLine()
End Sub
Private Function FindString(ByVal Text As String) As String
Dim result As String = ""
Dim match As Match = Regex.Match(Text, ">([0-9]*\.[0-9]*\.[0-9]*)<")
If match.Groups.Count = 2 Then
If match.Groups(1).Value.Length >= 5 AndAlso match.Groups(1).Value.Length <= 7 Then
result = match.Groups(1).Value
End If
End If
Return result
End Function
End Module
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